Wenbin Zhai

• Master of Engineering
• Nanjing University of Aeronautics and Astronautics

Informed path planning is a type of algorithm that uses problem-specific knowledge, expressed as heuristics, to efficiently discover an optimal path between a start and goal state.The efficiency of an informed algorithm is contingent upon how quickly the planner can find the initial solution and the associated overhead involved in collision detecti...

Existing FL-based approaches are based on the unrealistic assumption that the data on the client-side is fully annotated with ground truths. Furthermore, it is a great challenge how to improve the training efficiency while ensuring the detection accuracy in the highly heterogeneous and resource-constrained IoT networks. Meanwhile, the communication...

Unmanned Aerial Vehicle (UAV) networks have been widely used in both military and civilian scenarios. When users are interested in the statistical information of the historical sensory data in a certain region during a certain time period, they will send an aggregation query request with a spatial-temporal constraint to target UAVs which store the...

IoT devices are vulnerable to various attacks because they are resource-limited. This paper introduces a novel type of attack called time-delay attack. The malicious nodes delay packet forwarding by extending the processing time of packets, thus affecting the performance and availability of the network. This attack is very stealthy and difficult to...

In wireless sensor networks (WSNs), users often submit spatial range queries to obtain statistical information of an area in the network, such as the average temperature and the maximum humidity of an area. The existing privacy-preserving aggregation query algorithms depend on pre-established network topology, and maintaining network topology requi...

In recent years, Unmanned Aerial Vehicle (UAV) networks are widely used in both military and civilian scenarios. However, due to the distributed nature, they are also vulnerable to threats from adversaries. Time delay attack is a type of internal attack which maliciously delays the transmission of data packets and further causes great damage to UAV...

Unmanned Aerial Vehicles (UAVs) have been widely used in both military and civilian scenarios since they are low in cost and flexible in use. They can adapt to a wide variety of dangerous scenarios and complete many tasks the Manned Aerial Vehicles (MAVs) can not undertake. In order to establish connectivity and collect data in large areas, numerou...

Due to its wide coverage and strong scalability, spatial crowdsourcing (SC) has become a research hotspot in recent years. In order to assign tasks to closer workers, it is necessary for workers to provide accurate locations to the server. However, it will result in the leakage of the participants’ location privacy. Existing works provide each work...

Data collection with mobile agent (MA) can balance the energy consumption of nodes in partitioned wireless sensor networks. However, the existing data collection algorithms for partitioned WSNs do not formalize the problem systematically. These algorithms are not efficient and difficult to meet the timeliness requirement. In order to solve the abov...

With the development of wireless power transportation technology, wireless rechargeable sensor networks (WRSN) are widely used. To prolong the lifetime of WRSNs and make sure the completion of the long-time tasks, mobile charger (MC) is scheduled to charge sensor nodes wirelessly and prolong their lifetime. Existing studies typically assume that th...

Internet of Things (IoT) is widely used in environmental monitoring, smart healthcare, and other fields. Due to its distributed nature, IoT is vulnerable to various internal attacks. One of these attacks is the packet-dropping attack, which is very harmful. The existing packet-dropping attack detection algorithms are unsuitable for emerging resourc...

Due to the capability of fast deployment and controllable mobility, unmanned aerial vehicles (UAVs) play an important role in mobile crowdsensing (MCS). However, constrained by limited battery capacity, UAVs cannot serve a wide area. In response to this problem, the ground vehicle is introduced and used to transport, release, and recycle UAVs. Howe...